Smoke-consumer



" mmoaem/ v H. R; WALKER. SMOKE CONSUMER. o. 358,135. PatntedFeb.2.Z,1887.

T W WEN 1 llnrren STATES PATENT @FFIQE.

HUGH R. IVALKER', OF DETROIT, MICHIGAN.

SMOKE-C ONSUM ER.

E FI forming part of Letters Patent No. 358,135, dated February 22,1887.

Application filed August 2, 1886. Serial No. 205L783.

To aaZZ whom it may concern:

Be it known'that I, HUGH R. WALKER, a citizen of the United States,residing at Detroit, in the county of lVayne and State of Michigan, haveinvented certain new and useful Improvementsin a Combined Conveyer andSmoke-Consumer; and Ido declare the following to be afull, clear, andexact description of the invention,such as will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specification.

My invention'relates to that class of devices known as smoke-consumers.

The object of my invention is to overcome the smoke nuisancenow commonin furnaces and to save the fuel or heating qualities, a large portionof which escapeiu smoke.

By my device as constructed I am able to obtain a steady and uniformdraft, supplying the fire of the furnace with a sufiicient amount of airwhich has been partially heated, whereby, as it is drawn through theflames'of the furnace, it readily helps to form combustion, thusincreasing the heating capacity of the furnace.

My invention relates to the general arrange ment of parts,as hereinafterfully set forth,and pointed out particularly in the claims.

In the drawings forming a part of this specification, Figure l is a sideelevation of my in vention attached to a stationary furnace. Fig. 2 isan enlarged View of same, having like parts broken away.

In the drawings, B represents the brickwork surrounding the boiler andfurnace, S the common smoke-stack, H the usual hood covering the frontend of the boiler, through which the smoke escapes from the fines of theboiler to the smoke-stack, and D the feeddoor, all of which are incommon use.

Near the base of the smoke-stack S, I form in theside a port-hole ordischarge, 1?. Fitting over said discharge is a recciving-chamber,0.Joining said chamber is a horizontal pipe, J, which leads from thebottom of the chamber 0,

I andis coupled at oneend to the side opening (No model.)

on the mandrel of the fan. A belt passes over said pulley for drivingsaid fan.

Extending from the upper wall of the chamber O and into thesmoke-stackisa dischargepipe, Z. I locate in the smoke-staclgabove the portP,leadiug into the chamber 0, a damper, d,which,when turned to ahorizontal position, as show u in Fig. 2,conveys the gas and smoke intothe receiving chamber O,where the volatile particles escape th rough thedischarge-pipe Z into the stack S; The heavier and more valuableproducts of combustion by the action of the fan are drawn from thebottom of the chamber 0 through the pipe J, being discharged into thefurnace through the pipe K.

When the fan E is not in motion to obtain a direct draft through thesmokestack, I turn the wings of the damper d to a vertical position, asshown by dotted lines of Fig. 1.

Leading from the bottom of the fan is a discharge-pipe,K. Said pipeextends downward to a point below the grates G of the furnace, having anelbow'at m. Said pipe extends from said elbow horizontally through theside walls, B, of the furnace, its dischargef being within the furnaceand below the grates near the front end.

In the suction-pipe J, at a,I provide an opening or relief-hole. Fittingover said opening is a sliding-gate,c. The object of said gate'andopening is, in case the speed of the fan should cause too strong asuction through the port hole P of the stack, that the gate a may bedrawn back, as shown by dotted lines of Fig. 2, when the suction throughthe stack S and chamber C will be partially checked.

In the discharge-pipe K, leading from the fan to a point below thefurnace-grates G, I locate a cut-off or sliding gate, h, having ahandle,a,for moving said cut-01f. The object of this cut-off is toenable the'regulation of the discharge into the furnace below thegrates. lVhen the gate h is drawn back to the dotted position of Fig. 2,I have a full and strong discharge into the furnace.

When opening the door D to replenish the furnace with coal or fuel,should the fan E be running at a high speed, the sliding gate 0 in thesuction-pipe J should be drawn to cut off the suction from the chamber0, and the gate h should be slightly closed to decrease the volume ofdischarge into the furnace. This will prevent the escape of smoke fromthe door D While open.

Should it be desirous to draw into the fan a current of fresh air withthat drawn from the smoke-stack through the chamber 0, the sliding gatea should be moved sufliciently to allow the air to pass into thesuction-pipe through the port-hole a.

It will be observed thatbylo'eating the sliding gate 0 in thesuction-pipe and the cut-off gate h in the discharge-pipe I am able toreadily regulate the volume and force of the discharge into the furnaceaccording to the demand of the furnace or of the work it may be requiredto do.

Having thus fully set forth my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In a device for the purposes set forth,the combination of thefurnace, the smoke-stack, the damper located therein, the port-hole, thereceiving-chamber located over said port-hole, the discharge leadingfrom said chamber into the smokestaclgthe suction-pipe leading from thechamber to the exhaust-fan, the fan, and the diseharge'pipe leading fromsaid fan down to and having its discharge into the furnace below thegrate-bars,substantially as specified.

2. The combination of the furnace, the

to said port-hole, the discharge leading from said chamber into thesn1ol e-staek,the pipe J,

leading from the bottom of the chamber to the I exhaust-fan and havingthe gate 0, located in said pipe, the discharge-pipeleading from the fanto the furnace, havingitsdisehargef below p the grate-bars, and asliding gate or valve located in said discharge-pipe, substantially asspecified.

In testimony whereof I affix my signaturein presence of two witnesses.

HUGH It. \VALKER.

Witnesses:

R. B. WHEELER, B. F. \VHEELER.

